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Title (deu)
Probing and controlling multipolar orders via strain and phonons
Speaker / Lecturer
Arun Paramekanti
U Toronto
Description (deu)
This talk was part of the Workshop on "Spin-Orbit Entangled Quantum Magnetism" held at the ESI September 23 -- 27, 2024. Quadrupolar orders can couple linearly to phonons leading to the possibility of probing and controlling multipolar magnets via phonons or via coupling to strain fields. We illustrate this physics in a number of multipolar magnets including Mott insulators with non-Kramers doublets as well in higher moment magnets with strong spin-orbit coupling. Our results employ Floquet-Magnus expansions and new numerical tools we have developed to generalize the usual spin-phonon dynamics to SU(N) dynamics coupled to phonons. Time-permitting, we will also discuss how these ideas may be used to tune magnon or triplon band topology.
Keywords (deu)
solid-state magnetismESIcondensed matter physics
Subject (eng)
ÖFOS 2012 -- 103 -- Physics, Astronomy
Type (eng)
lecture
Language
English [eng]
Persistent identifier
https://phaidra.univie.ac.at/o:2093810
Project
Title (deu)
Spin-Orbit Entangled Quantum Magnetism
Project description (eng)
Workshop
Start date
2024-09-23
End date
2024-09-27
Project homepage
https://www.esi.ac.at/events/e542/
Date created
2024-09-23
Place of creation (eng)
ESI
Duration
40 minutes 22 seconds
Association (eng)
Research Platform Erwin Schrödinger International Institute for Mathematical Physics (ESI)
License
All rights reserved